Azure Health Score Calculator

Score an Azure subscription across reliability, cost, security and operations, and see which pillar to fix first.

Inputs

Production workloads that are zone redundant%

Production resources with a tested backup%

Steady-state compute covered by reservations%

Spend on orphaned or idle resources%

Azure Policy compliance%

Resources covered by Defender for Cloud%

Resources sending logs and metrics%

Alerts that lead to a real action%

A low figure means alert fatigue, not good health.

Overall Health Score

65.0/ 100

Grade

C — Fair

Reliability Pillar

65.0/ 100

Cost Pillar

54.2/ 100

Security Pillar

78.9/ 100

Operations Pillar

55.0/ 100

Fix This First

Cost — clear orphaned resources, then cover steady-state compute with reservations

Step by step

Values used
Production workloads that are zone redundant = 60 %; Production resources with a tested backup = 70 %; Steady-state compute covered by reservations = 45 %; Spend on orphaned or idle resources = 8 %; Azure Policy compliance = 82 %; Resources covered by Defender for Cloud = 75 %; Resources sending logs and metrics = 65 %; Alerts that lead to a real action = 40 %
Azure Health Score
score = reliability × 0.30 + security × 0.30 + cost × 0.20 + operations × 0.20, where each pillar is a weighted blend of its coverage inputs and orphaned spend is penalised at four points per percent.
Overall Health Score
= 65.0 / 100
Grade
= C — Fair
Reliability Pillar
= 65.0 / 100
Cost Pillar
= 54.2 / 100
Security Pillar
= 78.9 / 100
Operations Pillar
= 55.0 / 100

How it works

Each pillar is scored from coverage percentages you can pull from Azure Policy, Defender for Cloud, Advisor and Azure Monitor, then combined with reliability and security carrying the heaviest weight. Orphaned spend is penalised sharply because it is pure waste with no offsetting benefit, so even a few percent drags the cost pillar down hard. A single score makes an Azure estate comparable over time and across subscriptions, and the weakest-pillar output turns that score into one concrete next action instead of a dashboard nobody reads.

Formula

Azure Health Score

reliability pillar: Half zone redundancy, half tested backup coverage
cost pillar: Reservation coverage against a penalty for orphaned spend
operations pillar: Telemetry coverage weighted with how actionable the alerts are

Frequently Asked Questions

How is Azure Health Score calculated?

score = reliability × 0.30 + security × 0.30 + cost × 0.20 + operations × 0.20, where each pillar is a weighted blend of its coverage inputs and orphaned spend is penalised at four points per percent. Each pillar is scored from coverage percentages you can pull from Azure Policy, Defender for Cloud, Advisor and Azure Monitor, then combined with reliability and security carrying the heaviest weight. Orphaned spend is penalised sharply because it is pure waste with no offsetting benefit, so even a few percent drags the cost pillar down hard.

Why does Azure Health Score matter?

A single score makes an Azure estate comparable over time and across subscriptions, and the weakest-pillar output turns that score into one concrete next action instead of a dashboard nobody reads.

What values do I need to enter?

This calculator takes 8 inputs: Production workloads that are zone redundant, Production resources with a tested backup, Steady-state compute covered by reservations, Spend on orphaned or idle resources, Azure Policy compliance, Resources covered by Defender for Cloud, Resources sending logs and metrics, Alerts that lead to a real action. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.

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